Oil/water separation becomes a research hotspot because of the frequent oil spill accidents. Although lots of separating membranes with super-wettability have been fabricated to separate oil or water from the mixtures, to separate both heavy (ρ_oil > ρ_water) and light (ρ_oil < ρ_water) oil/water mixtures with high efficiency and high flux is still a challenge, especially to obtain a membrane with mechanically robust nanostructures, and simultaneously anti-corrosive and self-cleaning ability. Herein, a novel titania nanostructured mesh membrane with superamphiphilicity in air, and dual superlyophobicity in liquid mediums were fabricated. Both high separation efficiency and flux of more than 99.2% and 16,954 L m⁻²h⁻¹ were obtained for both light and heavy oil/water mixtures. Importantly, the TiO₂ mesh membrane showed mechanically robust nanostructures and anti-corrosive ability, which can remain dual superlyophobicity, i.e., both underwater superoleophobicity and underoil superhydrophobicity and high oil-water separating behavior even after immersion in solutions of strong acid, basic, high salty, various organic solvents, and even after being abrased and adhered by pure sands and adhesive tape, respectively. Meanwhile, TiO₂ mesh membrane had shown photocatalytic decomposition of oil and organic molecules under UV irradiation, demonstrating unique self-cleaning and anti-fouling ability of the membranes. Given so many merits of these unique membranes, it is believed to these membranes have great potentials to be used in wastewater treatment and oil spill recovery.

由于频繁发生漏油事故，油水分离成为研究热点。尽管已经制造出许多具有超润湿性的分离膜，以从混合物中分离出油或水，但它们可以高效，高分离度地分离重质（ρ_油 >ρ_水）和轻质（ρ_油 <ρ_水）的油/水混合物助焊剂仍然是一个挑战，特别是要获得具有机械坚固的纳米结构，同时具有抗腐蚀和自清洁能力的膜。本文制备了一种新型的二氧化钛纳米网状膜，在空气中具有超两亲性，在液体介质中具有双重超疏液性。分离效率高，通量均超过99.2％，且通量为16,954 L m ^-2轻油和重油/水混合物均获得h ^-1。重要的是，TiO ₂网格膜表现出机械坚固的纳米结构和抗腐蚀能力，即使浸入强酸，碱性，高酸溶液中，也可以保持双重超疏油性，即水下超疏油性和底油超疏水性以及高油水分离性能。含盐，各种有机溶剂，甚至在分别被纯净的沙子和胶带磨擦并粘附之后。同时，TiO ₂网膜在紫外线照射下显示出油和有机分子的光催化分解，证明了该膜具有独特的自清洁和防污能力。鉴于这些独特膜的诸多优点，人们认为这些膜具有巨大的潜力，可用于废水处理和溢油回收。